#B5C728#B5C728

#B5C728 is a light, vivid yellow. Relative luminance 0.508; OKLCH L 79.0% C 0.170 H 116.3°. Best body text is #000000 at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#B5C728
RGB	rgb(181, 199, 40)
HSL	hsl(67, 67%, 47%)
HSV	hsv(67, 80%, 78%)
CMYK	cmyk(9%, 0%, 79.9%, 22%)
CIE-LAB	lab(76.57, -24.75, 70.23)
CIE-LCH	lch(76.57, 74.47, 109.41°)
OKLab	oklab(78.96% -0.0756 0.1527)
OKLCH	oklch(78.96% 0.17 116.3)
XYZ	xyz(39.8636, 50.8244, 9.7172)
Luminance	0.5082 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5C728 #3A28C7

analogous

#C78928 #B5C728 #66C728

triadic

#B5C728 #28B5C7 #C728B5

tetradic

#B5C728 #28C789 #3A28C7 #C72866

square

#B5C728 #28C789 #3A28C7 #C72866

split-complementary

#B5C728 #2866C7 #8928C7

monochromatic

#586114 #87941E #B5C728 #CCDC50 #DBE683

Accessibility & contrast

On white

1.88

#B5C728 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.16

#B5C728 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #B5C728

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5C728	#FFFFFF	#000000	##000000
##B5C728	1.00	1.88	11.16	11.16
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.16	21.00	1.00	1.00
##000000	11.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BC00

Deuteranopia (green-blind)

#D4BE38

Tritanopia (blue-blind)

#C1BBAA

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #b5c728;
/* rgb */ color: rgb(181, 199, 40);
/* oklch */ color: oklch(79.0% 0.170 116.3);

Tailwind

colors: {
  custom: {
    50: '#cfd771',
    500: '#b5c728',
    950: '#000000',
  },
}

SCSS

$custom: #b5c728;
$custom-light: #cfd771;
$custom-dark: #000000;

JSON

{
  "hex": "#b5c728",
  "rgb": {
    "r": 181,
    "g": 199,
    "b": 40
  },
  "hsl": {
    "h": 66.792,
    "s": 66.527,
    "l": 46.863
  },
  "oklch": {
    "l": 0.78959,
    "c": 0.17039,
    "h": 116.3
  },
  "luminance": 0.50824
}

Semantic roles & 50–950 ramp

primary

#B5C728

secondary

#2F276C

accent

#3EE952

background

#FEFEFB

surface

#FBFBF1

border

#D4D4CB

text

#141409

muted

#83837D

Preview Lab

Preview with #B5C728

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →